107 	struct loopback_cable *cable;  member
204 static int loopback_check_format(struct loopback_cable *cable, int stream)  in loopback_check_format()  argument
211 	if (cable->valid != CABLE_VALID_BOTH) {  in loopback_check_format()
216 	runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->  in loopback_check_format()
218 	cruntime = cable->streams[SNDRV_PCM_STREAM_CAPTURE]->  in loopback_check_format()
228 		snd_pcm_stop(cable->streams[SNDRV_PCM_STREAM_CAPTURE]->  in loopback_check_format()
231 		runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->  in loopback_check_format()
233 		setup = get_setup(cable->streams[SNDRV_PCM_STREAM_PLAYBACK]);  in loopback_check_format()
234 		card = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->loopback->card;  in loopback_check_format()
265 	struct loopback_cable *cable = dpcm->cable;  in loopback_trigger()  local
270 		err = loopback_check_format(cable, substream->stream);  in loopback_trigger()
276 		spin_lock(&cable->lock);	  in loopback_trigger()
277 		cable->running |= stream;  in loopback_trigger()
278 		cable->pause &= ~stream;  in loopback_trigger()
280 		spin_unlock(&cable->lock);  in loopback_trigger()
285 		spin_lock(&cable->lock);	  in loopback_trigger()
286 		cable->running &= ~stream;  in loopback_trigger()
287 		cable->pause &= ~stream;  in loopback_trigger()
289 		spin_unlock(&cable->lock);  in loopback_trigger()
295 		spin_lock(&cable->lock);	  in loopback_trigger()
296 		cable->pause |= stream;  in loopback_trigger()
298 		spin_unlock(&cable->lock);  in loopback_trigger()
304 		spin_lock(&cable->lock);  in loopback_trigger()
306 		cable->pause &= ~stream;  in loopback_trigger()
308 		spin_unlock(&cable->lock);  in loopback_trigger()
322 	struct loopback_cable *cable = dpcm->cable;  in params_change()  local
324 	cable->hw.formats = pcm_format_to_bits(runtime->format);  in params_change()
325 	cable->hw.rate_min = runtime->rate;  in params_change()
326 	cable->hw.rate_max = runtime->rate;  in params_change()
327 	cable->hw.channels_min = runtime->channels;  in params_change()
328 	cable->hw.channels_max = runtime->channels;  in params_change()
335 	struct loopback_cable *cable = dpcm->cable;  in loopback_prepare()  local
362 	if (!(cable->valid & ~(1 << substream->stream)) ||  in loopback_prepare()
366 	cable->valid |= 1 << substream->stream;  in loopback_prepare()
474 static unsigned int loopback_pos_update(struct loopback_cable *cable)  in loopback_pos_update()  argument
477 			cable->streams[SNDRV_PCM_STREAM_PLAYBACK];  in loopback_pos_update()
479 			cable->streams[SNDRV_PCM_STREAM_CAPTURE];  in loopback_pos_update()
483 	running = cable->running ^ cable->pause;  in loopback_pos_update()
532 	spin_lock_irqsave(&dpcm->cable->lock, flags);  in loopback_timer_function()
533 	if (loopback_pos_update(dpcm->cable) & (1 << dpcm->substream->stream)) {  in loopback_timer_function()
537 			spin_unlock_irqrestore(&dpcm->cable->lock, flags);  in loopback_timer_function()
543 	spin_unlock_irqrestore(&dpcm->cable->lock, flags);  in loopback_timer_function()
552 	spin_lock(&dpcm->cable->lock);  in loopback_pointer()
553 	loopback_pos_update(dpcm->cable);  in loopback_pointer()
555 	spin_unlock(&dpcm->cable->lock);  in loopback_pointer()
599 	struct loopback_cable *cable = dpcm->cable;  in loopback_hw_free()  local
602 	cable->valid &= ~(1 << substream->stream);  in loopback_hw_free()
619 	struct loopback_cable *cable = dpcm->cable;  in rule_format()  local
624 	m.bits[0] = (u_int32_t)cable->hw.formats;  in rule_format()
625 	m.bits[1] = (u_int32_t)(cable->hw.formats >> 32);  in rule_format()
634 	struct loopback_cable *cable = dpcm->cable;  in rule_rate()  local
638 	t.min = cable->hw.rate_min;  in rule_rate()
639 	t.max = cable->hw.rate_max;  in rule_rate()
650 	struct loopback_cable *cable = dpcm->cable;  in rule_channels()  local
654 	t.min = cable->hw.channels_min;  in rule_channels()
655 	t.max = cable->hw.channels_max;  in rule_channels()
666 	struct loopback_cable *cable;  in free_cable()  local
668 	cable = loopback->cables[substream->number][dev];  in free_cable()
669 	if (!cable)  in free_cable()
671 	if (cable->streams[!substream->stream]) {  in free_cable()
673 		spin_lock_irq(&cable->lock);  in free_cable()
674 		cable->streams[substream->stream] = NULL;  in free_cable()
675 		spin_unlock_irq(&cable->lock);  in free_cable()
679 		kfree(cable);  in free_cable()
688 	struct loopback_cable *cable = NULL;  in loopback_open()  local
702 	cable = loopback->cables[substream->number][dev];  in loopback_open()
703 	if (!cable) {  in loopback_open()
704 		cable = kzalloc(sizeof(*cable), GFP_KERNEL);  in loopback_open()
705 		if (!cable) {  in loopback_open()
709 		spin_lock_init(&cable->lock);  in loopback_open()
710 		cable->hw = loopback_pcm_hardware;  in loopback_open()
711 		loopback->cables[substream->number][dev] = cable;  in loopback_open()
713 	dpcm->cable = cable;  in loopback_open()
744 		runtime->hw = cable->hw;  in loopback_open()
746 	spin_lock_irq(&cable->lock);  in loopback_open()
747 	cable->streams[substream->stream] = dpcm;  in loopback_open()
748 	spin_unlock_irq(&cable->lock);  in loopback_open()
887 	struct loopback_cable *cable;  in loopback_active_get()  local
892 	cable = loopback->cables[kcontrol->id.subdevice][kcontrol->id.device ^ 1];  in loopback_active_get()
893 	if (cable != NULL) {  in loopback_active_get()
894 		unsigned int running = cable->running ^ cable->pause;  in loopback_active_get()
1105 	struct loopback_cable *cable = loopback->cables[sub][num];  in print_substream_info()  local
1108 	if (cable == NULL) {  in print_substream_info()
1112 	snd_iprintf(buffer, "  valid: %u\n", cable->valid);  in print_substream_info()
1113 	snd_iprintf(buffer, "  running: %u\n", cable->running);  in print_substream_info()
1114 	snd_iprintf(buffer, "  pause: %u\n", cable->pause);  in print_substream_info()
1115 	print_dpcm_info(buffer, cable->streams[0], "Playback");  in print_substream_info()
1116 	print_dpcm_info(buffer, cable->streams[1], "Capture");  in print_substream_info()